description | 想要购买发明专利吗?我们是一家专门从事专利买卖的网站,提供发明专利购买服务。如果你不知道如何购买专利,或者想了解买一个专利的价格等相关问题,就来我们网站吧! |
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introduction |
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update time | 2023-10-06 11:58:36 |
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